Oil Derrick Review GreedyGangster Linear Measurement September 14, 2018October 5, 2018BIT Crystal, Linear Measurement, Measuring & Layout Tools, Tools & Home Improvement 0 Comment This fits your . Make sure this fits by entering your model number. Sphere-topped Rectangle WxDxH=1-5/8″x1-5/8″x3-1/2″ Oil Derrick